I fish jus died after three dsys of having them gold fish they white things on there fins an started to swim funny then they died i will like to know hiw to treat the fishs an clean the tank
It sounds like your fish developed white spot disease, also called ich (ick). White spot disease, scientifically named Ichtyopthirius multifiliis, is commonly referred to as freshwater ich or ick. The disease is caused by single-cell organisms (protozoa) that attack fish with lowered immune systems. If your goldfish have recently survived an infection, sudden temperature change, or long period in dirty water, they could be vulnerable to white spot disease. If you have any fish left, slowly raise the water temperature to 86 degrees Fahrenheit, about 2 degrees per hour. The heat stops the ich parasites from dividing into many more. You can also add salt, which will help your fish develop their slime coat to help them ward off reattachment from the parasites. Use salt specifically for freshwater fish (aquarium salt), not table salt. Follow the directions on the back of the container for best results or add 1 tablespoon (3 teaspoons) for every 5 gallons (19 liters) of aquarium water. Man
Updated on September 24th, 2025